Design and Testing of Fiber Reinforced Self Compacting Concrete

ABSTRACT: Many countries are producing self-compacting concrete (SCC) that has many advantages compared to conventional concrete. To improve tensile strength of concrete and produce fiber reinforced concrete (FRC), steel fibers are added. Although FRC is being produced in N. Cyprus for a long time, SCC is a new product for the construction industry. Therefore, combination of SCC and FRC would bring many benefits. This study was composed of three parts. The first part was based on the design of SCC and FR-SCC with locally available materials of N. Cyprus in addition to chemical additives. The second part was based on studying the effects of using different percentages of steel fibers on SCC by testing the fresh properties of SCC and FR-SCC matrix such as slump flow, J-ring L-box, V-funnel and column segregation. The third part was dealing with the comparison of hardened properties of SCC and FR-SCC mixes such as compressive strength, splitting tensile strength, flexural strength, impact energy, surface abrasion resistance, and depth of water penetration, density, absorption, voids content, chloride ion permeability and ultrasonic pulse velocity tests. The results have shown that the addition of fibers improves the compressive strength, splitting tensile strength, impact energy, and depending on the w/c ratio and admixture content better workability can be obtained for FR-SCC. Keywords: Fiber reinforced self-compacting concrete, J-Ring, T50, Impact energy, Surface abrasion. ……………………………………………………………………………………………………………………………………………………………………………………………………………………